Charlie Daniels, a fan of AMC's 'Hell on Wheels' composed a song for an upcoming episode. Watch exclusive behind-the-scenes footage from the set. / Rick Diamond, Getty Images

by USA TODAY

by USA TODAY

The topic: The story behind legendary country artist Charlie Daniels' original song from this Saturday's episode of AMC Western Hell on Wheels. Daniels was recruited via Twitter by series actor Anson Mount, who whose favorite song as a kid was The Devil Went Down to Georgia.